Drop Grunt, switch from UglifyJS to Terser, update actions

Author: mgol

.github/workflows/ci.yml

@@ -12,17 +12,18 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [24.x]
 
     steps:
       - name: Checkout
-        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3.6.0
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
         with:
           node-version: ${{ matrix.node-version }}
-          cache: 'npm'
+          cache: npm
+          cache-dependency-path: '**/package-lock.json'
 
       - name: Install dependencies
         run: npm ci

Gruntfile.js

@@ -10,7 +10,7 @@ export default [
         ],
     },
     {
-        files: [ "*.js" ],
+        files: [ "*.js", "scripts/**/*.js" ],
         languageOptions: {
             sourceType: "script",
             globals: {
@@ -23,7 +23,7 @@ export default [
         },
     },
     {
-        files: [ "*.mjs" ],
+        files: [ "*.mjs", "scripts/**/*.mjs" ],
         languageOptions: {
             sourceType: "module",
             globals: {